PDF malware analysis — malicious · af29a89e89c80dc7

MALICIOUS

PDF

4.4 KB

MD5: 19f858849d368620e425e618a1aee58d SHA-1: 25e9545c76f21d32c1e81160aab17945a5c399de SHA-256: af29a89e89c80dc7e9a2a50379a03fc6689b1105daf92f2e349f4354ec4a1aea

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1027 Obfuscated Files or Information

The PDF file contains an XFA form and triggers the CVE-2010-0188 heuristic, indicating exploitation of a vulnerability in Adobe Reader related to LibTIFF processing within XFA forms. The presence of ASCIIHexDecode and ASCII85Decode filters further suggests obfuscation techniques used to hide the exploit payload. The extracted artifact 'stream_000_off000001f9.bin' is likely the decompressed exploit code.

Heuristics 5

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_000_off000001f9.bin` `633b6c585d5662f4d27394823cc42f2c392a781a313aeb485765be6ddc695cc3`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1F9	13469 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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